Smut-machine



J. TOMPKINS.

Smut Mill.

No. 17,596. Patented June-16,1857.

UNITED STATES PATENT OFFICE.

JAMES TOMPKINS, OF LIBERTY, PENNSYLVANIA.

SMlUT-MAGHINE.

Specification of Letters Patent No. 17,596, dated June 16, 1857.

To all whom it may concern:

Be it known that I, JAMES TOMPKINS, of Liberty, county of Susquehanna, and State of Pennsylvania, have invented certain new and useful Improvements in Mechanism for Cleansing Grain; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the annexed drawings, making part of this specification.

Figure 1 represents a side elevation of my improved machine complete. Fig. 2, is a vertical longitudinal Section, showing the interior cylinder, also indicating by arrows the course of the grain in passing through the machine. Fig. 3 is also a side elevation of the interior cylinder detached, representing it perforated like the outer or exterior cylinder.

The nature of my invention consists in constructing machines for cleansing grain of two cylinders, one placed within the other, and arranging upon one shaft, passing through these cylinders, two sets of heaters or fans-one set operating in the inner cylinder and the other'set operating in a space between the two; by which arrangement grain receives double the amount of cleansing within the same machine, as in other machines for the same purpose.

To enable others skilled to construct and use my improved machine for cleansing grain, I will proceed to describe the same in detail.

Like letters indicate similar parts in all the figures.

A in the annexed drawings represents a rectangular frame constructed of any suitable material. WVithin this frame (A) is secured a cylinder (B) the ends of which cylinder are closed by heads (G) (E).

Through the center of the cylinder passes a shaft (D) resting in bearings (a) secured to the corresponding ends of the frame (A.) Upon the end of the shaft (D) is secured a driving pulley (a) through which motion is imparted. to said shaft upon which are secured the heaters or fans. )Vithin the cylinder (B) is placed a smaller cylinder (F) of sufficient difference to allow ample room for the heaters (G) to rotate between the two. One end of the cylinder (F) is closed by a head (C) and is supported by the shaft (D) passing through said head, while its opposite end is closed by the head and retained in position by an annular projection (1') formed on its inner side.

The heaters within the inner cylinder (F) extend nearly its entire length, and are secured by cross-bars (u) at either end. The heaters operating between the two cylinders are secured to the shaft (D) by but one end, their opposite ends being free to permit the introduction of grain through the hopper (P) and to rotate around the inner cylinder By reference to the drawings it will be observed, that grain to be cleansed is introduced through the hopper (P) into the interior cylinder (F) where it is first subjected to the action of the heaters (I), through which cylinder it passes and delivered at the lower side of its opposite end into the exterior cylinder (B) where it is again subjected to a second and more thorough agitation by the increased speed of the heaters (G) from which cylinder it is discharged at the front end of the machine, thoroughly cleansed from smut and other foreign substances.

Having thus fully described my improved mechanism for cleansing grain, what I claim therein as new and desire to secure by Letters Patent is Constructing machines for cleansing grain of two cylinders, one placed within the other, and of two sets of heaters Secured to one shaft passing through these cylinders, the whole so arranged that grain being cleansed may be subjected to two separate and distinct agitations in the one machine, substantially in the manner described.

JAMES TOMPKINS.

Witnesses:

S. W. W001), J NO. S. HOLLINGSHEAD. 

